Question: You collect a sample size N1 of data and find
You collect a sample size N1 of data and find that a 90% confidence level has width, w. What should the sample size N2 be to increase the confidence level to 99.9% and yet maintain the same interval width, w?
Answer to relevant QuestionsCompany A manufactures computer applications boards. They are concerned with the mean time before failures (MTBF), which they regularly measure. Denote the sample MTBF as ǔM and the true MTBF as μM. Determine the number of ...A gambler plays a game of chance where he wins $ 1 with probability ρ and loses $ 1 with probability 1–p each time he plays. The number of games he plays in an hour, N, is a random variable with a geometric PMF, PN( n) = ...Find the variance of the sample standard deviation, Assuming that the Xi are IID Gaussian random variables with mean μ and variance σ2. Let X (t) = A(t) cos (ω0t + θ), where A(t) is a wide sense stationary random process independent of θ and let θ be a random variable distributed uniformly over . Define a related process Y (t) = A (t) cos((ω0 +ω1) t + ...Let X (t) be a wide sense stationary random process that is ergodic in the mean and the autocorrelation. However, X (t) is not zero- mean. Let Y (t) = CX (t), where C is a random variable independent of X (t) and C is not ...
Post your question